<![CDATA[Star Ruby's (Harshil Jeweller's of Mumbai, India) and Alfo Gems of Bangkok, Thailand are marketing "Cat's Eye Alexandrite loose gems. Star Ruby says they are all true Chrysoberyl Alexandrite Color Change Cat's Eyes from Orissa Mines there in India, while Alfogems claims theirs are from Brazil. Both sell through websites as well as on EBay. Both claim their 3+ carat gems are true color change Alexandrite Cat's Eyes (Chrysoberyl). I would like your opinion on these two marketers of Alexandrite Cat's Eyes. I have bought from Star Ruby once on a Star Ruby, but have never bought from Alfo Gems.]]>

Chrysoberyl is the species name and Alexandrite is the variety name. Alexandrite is that variety of chrysoberyl that changes color as a function of the light source; green in daylight and red under incandescent light.

The mining of alexandrite in Russia lasted less than 100 years from the time it was discovered in 1833 to the early 1900’s. It was George Kunz, the gemologist/gemstone buyer for Tiffany & Co that probably did the most to popularize this unique gemst

Russian Alexandrites is illustrated with more than 200 colour figures and photographs, addresses mineralogists, gemmologists, historians, mineral and gem collectors as well as all members of the gem trade.

Russian Alexandrites is illustrated with more than 200 colour figures and photographs, addresses mineralogists, gemmologists, historians, mineral and gem collectors as well as all members of the gem trade.

The retail replacement cost for a 1ct. alexandrite could be anywhere between $500 to $12,000 per carat. The intensity of the color change and the attractiveness of the colors are the most important factors in determining the value of an alexandrite. With

Along with diamonds, rubies, and emeralds, top quality alexandrites are among the most expensive gemstones in the world. In larger sizes over 4.00 or 5.00cts., Burmese rubies are more rare and expensive than alexandrites but in sizes below 1.00cts., alexa